Mercury Quality Control

Mercury that is 99.9 percent in purity and that is commercial grade is also known as prime virgin grade mercury. The ultra pure mercury is in most occasions produced by the process of triple distillation and the name of this type of mercury is known as triple distilled mercury. The inspections concerning quality control of the whole process of roasting and condensing consists on checking the liquid and condensed mercury to see if there are any foreign metals given that they are the most common contaminants. There are several ways in which base metals as well as silver and gold can be detected through the means of chemical tests. Triple distilled mercury is commonly done and it is through a means of evaporation or spectrographic analysis. In the method of evaporation, the sample of mercury is evaporated meaning the residue is left behind. In the spectrographic analysis, a sample of mercury is evaporated and the residue is then combined with graphite. The light that then comes from the mixture is looked at with the help of a spectrometer and this takes care of dividing the light into diverse color strips depending on the chemical elements that are in it.